4) ½N2(g) + 02(g)= NO2(g) Kc = 1.04 x 10-9 N2(g) + 202(g)= N204(g) Kc = 7.42 x 10-18 Calculate Kc for each of the following. (a) 2NO2(g)= N2(g)+ 202(g) (b) N2(g) + 202(g)= N2O4(g) (c) 2NO2(g) = N2O4(g)

Q: Which of the following ions has the electron configuration 1s22s22p°? A) Mg* B) N2 C) N3 D) O E) F*

A:

Q: Write an equation for the dissociation of  NaCl CaCl2  AlCl3

A: Given,  The dissociation equation s of NaCl, CaCl2 and AlCl3 are:

Q: Would it be reasonable to store the standardized KMnO4 solution in a screw- cap bottle, if the cap i...

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Q: d. [H]= 1 x 10-13 M e. [OH]=1 x 10-º M

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Q: Select True or False: Under the conditions of high temperatures only, the reaction O2(g) → 20(g) wou...

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Q: 7. If the solution with the pH of 1.30 had a concentration of 0.05M, what is the percent ionized for...

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Q: Part A Calculate the standard cell potential for each of the following electrochemical cells. Standa...

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Q: 3. Čalculate the % of Cl in chloroform CHCI3.

A:

Q: . Ethane (C2H) has a heat of vaporization of 14,707 kJ g mol at 184.6 K. What is the estimated heat ...

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Q: Consider the molecules CH3CH3 and CH3CH2OH Using a description of intermolecular forces, briefly exp...

A: Answer :  ★ considering the molecules CH3CH3 is a alkane molecule and CH3CH2OH which is a alcohol mo...

Q: Draw the orbital diagram for the valence electron configuration of the element Strontium (Sr)

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Q: Write all pertinent computations to justify your final answer. Final answers must be enclosed with a...

A: a. baking soda, pOH = 5.7 b. Soap solution, H+ = 1 x 10-12 c. eyewash, pH = 7.4 d. vinegar, pOH = 11...

Q: The yield of a chemical process, expressed in percentage of the theoretical maximum, is measured wit...

A: Answer : Manual calculation if we prepare the table :   Catalst A Catalst B Catalst C   79.2 81...

Q: Consider the data in the table. Compound Melting point (°C) AHfus (kJ/mol) Boiling point (°C) | AHva...

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Q: Q4: The heater element of an electric kettle has a constant resistance of 120 n and the applied volt...

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Q: glassware

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Q: Barium sulfate from a 1.300-g sample was contaminated with 9.4 mg of Fe2(SO4)3 and weighed a total o...

A: Solution - According to the question - Given - Molar weight of BaSO4 = 233.38 g/mol Mass of sample =...

Q: The temperature that a paper burns is 230 °C. What is the temperature in Fahrenheit and Kelvin?

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Q: If 6.63 × 10−6 mol of a compound has a mass of 2.151 mg, what is the molar mass of the compound?

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Q: temperature be? You kJ/mol at temperatures within 20 K of its least qualitatively correct (hotter or...

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Q: Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic i...

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Q: A gas storage cylinder in an ordinary chemical laboratory measures 2.0 cm wide and 8.0 cm high. This...

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Q: Stronger Bronsted- Lowry acid C9H7N Weaker Bronsted-Lowry C9H,NH+ acid Stronger Bronsted- Lowry base...

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Q: Answer the following questions on the basis of the free energies of formation at 25°C shown in the t...

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Q: 2. Here are two different acidic solutions: (1) a solution with a pH of 2.30 (2) a solution with a p...

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Q: The hydroxide ion concentration, [OH-], of an aqueous solution of 0.558 M triethylamine (a weak base...

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Q: A 0.4574 g sample containing only NaCN and KCN requires 41.65 ml of 0.1056 M AGNO3 for titration. Ca...

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Q: How can Methyl SALICYLATE be tested by chemical means? Include pertinent chemical reactions and stru...

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Q: The pH of an aqueous solution of 0.231 M sodium acetate, NaCH3COO (aq), is

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Q: The change in intternal energy of a closed system is entirely deependent on heat exchanged. Select o...

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Q: 1,

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Q: Identify: - Element whose 5p orbital has 1 electron - Element in Group 7A whose anion form is isoel...

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Q: er entropy

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Q: Make a list of the properties of ACID. Explain why each is helpful.

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Q: 1. Predict whether the entropy change for each of the following reactions will have a positive value...

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Q: The zinc(II) ion behaves as a Lewis acid. It is found in an enzyme called carboxypeptidase A. This e...

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Q: The boiling point of water in Fahrenheit .2 * scale is • 32 • 212 • 82

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Q: 2.SO2 t Oz → 2S03 If 42019 of 80z reacts with 28-6g Df 0z be how produce!? many grams of SDg oil

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Q: Complete the table. For which one of the following reactions is the value of AHºpn equal to AHº, for...

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Q: ur quantum numbers

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Q: nickel to 97.93 °C and then drops it into a cup containing 75.96 grams of water at 20.90 °C. She mea...

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Q: balance

A:

Q: T1 T2 T3 Initial Volume of NaOH (mL) 0.00 3.95 7.95 Final Volume...

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A: The molecular formula of the organic compound given is C7H12O4. The degree of unsaturation = C+1−(H/...

Q: e reaction quotient

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any spe...

Q: 5. What would the pH of a solution that had a hydroxide ion concentration of 1 x 10º M be?

A:

Q: 12. Here are two different acidic solutions: (1) a solution with a pH of 2.30 and a concentration of...

A:

Q: Identify the absolute configuration of the chirality centers in each of the following compounds as R...

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Q: In N2O , 28 g N combines with 16  g O. Determine grams of O and N in NO2.

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Q: Enumerate and differentiate briefly the different forms of calcium in the blood. EXPLAIN 3-5 SENTENC...

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.